The waterproof, food-safe alternative to one-way cardboard shipping boxes. Custom sizes, 3-day production, 0% anti-dumping duty (Thailand-manufactured) entering the USA from Thailand.
PP corrugated shipping boxes are rigid boxes fabricated from twin-wall polypropylene corrugated sheet — the same fluted plastic construction used in gaylord boxes, produce crates, and industrial containers, but in standard shipping box form factors. They are engineered as direct replacements for one-way cardboard in applications where a closed-loop return system is possible.
The core engineering advantage over cardboard is moisture resistance. A cardboard shipping box in a refrigerated environment — or exposed to rain, produce moisture, or condensation — loses 40–70% of its stack strength and risks catastrophic failure. PP corrugated retains 100% of its structural properties when wet. That makes it the default choice in cold chain produce, seafood, poultry, and frozen food shipping where moisture is unavoidable.
Elipacko manufactures PP corrugated shipping boxes in custom dimensions — any L×W×H — with 3-day production lead time and zero tooling cost. Standard configurations start at MOQ 500 units. All Thailand-manufactured product enters the US at 0% anti-dumping duty (Thailand-manufactured).
PP corrugated shipping boxes come in three main configurations. Open-top boxes are used where a separate pallet stretch wrap provides containment — common in produce and meat cold chain. Lidded boxes (separate flat PP lid) provide full enclosure for stacking and dust exclusion — common in pharmaceutical and electronics shipping. Self-locking tuck flap boxes mimic the standard cardboard RSC format — fold-and-lock with no tools, suitable for mixed SKU shipments where a simple one-piece box is needed.
| Property | PP Corrugated (Elipacko) | Single-Wall Cardboard | Double-Wall Cardboard |
|---|---|---|---|
| Waterproof | ✓ 100% | ✗ Fails when wet | ✗ Fails when wet |
| Reuse cycles | 200–500 | 1–2 | 2–4 |
| Cold chain rated | ✓ −20°F to 180°F | ✗ Loses 40–70% strength | ✗ Loses 40–70% strength |
| Stack strength (wet) | 100% retained | 30–60% retained | 30–60% retained |
| FDA food-safe | ✓ 21 CFR 177.1520 | Varies by liner | Varies by liner |
| Custom sizing | Any dimension, 3 days | Any dimension | Any dimension |
| Unit cost | $8–$30 | $0.80–$3 | $2–$6 |
| Cost per trip (300 cycles) | $0.03–$0.10 | $0.80–$3 | $0.50–$2 |
| Pressure washable | ✓ Yes | ✗ Destroyed | ✗ Destroyed |
| End-of-life | Recyclable PP #5 | Recyclable paper | Recyclable paper |
Bottom line: For closed-loop supply chains — produce DCs, protein processors, automotive JIT, pharmaceutical return packaging — PP corrugated shipping boxes reduce total packaging cost by 90–97% compared to one-way cardboard over a 300-trip fleet life.
Wax-free PP shipping boxes for lettuce, berries, citrus, and stone fruit. 100% waterproof — no wax coating needed. Stackable 8–10 high on GMA pallet. FDA food-safe, USDA accepted. Return via backhaul — same truck that delivered.